Table 2.
Results from cluster analysis
| Cluster Characterization | High Cohesion-High Embedded Questions | High Cohesion-Low Embedded Questions | Low Cohesion-High Embedded Questions | Low Cohesion-Low Embedded Questions | All Books | |
|---|---|---|---|---|---|---|
| Quantity of books | number | 9 | 10 | 15 | 26 | 60 |
| % | 15 | 17 | 25 | 43 | 100 | |
|
| ||||||
| Cohesion | m | 5.23 | 8.34 | 2.02 | 1.79 | 3.46 |
| sd | 1.95 | 2.98 | 1.37 | 1.46 | 3.08 | |
| z | 0.58 | 1.59 | −0.47 | −0.54 | 0.00 | |
|
| ||||||
| Embedded Questions | m | 0.25 | 0.04 | 0.13 | 0.01 | 0.08 |
| sd | 0.05 | 0.05 | 0.05 | 0.02 | 0.09 | |
| z | 1.80 | −0.46 | 0.49 | −0.73 | 0.00 | |
|
| ||||||
| Within cluster SS | - | 5.93 | 10.57 | 6.68 | 6.75 | 29.93 |